Nut-lock



nrrnn THOMAS LOVELIDGE, OF PHILADELPHIA, PENNSYLVANIA.

NUT LOCK.

SPECIFICATION forming part of Letters Patent No. 335,941, dated February 9, 1886.

Application filed July 28, 1884. Serial No. 138,970. (No model.)

To all whom it may concern:

Be it known that I, THOMAS LOVELIDGE, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain lmprovenientsin Nut-Locks, of which the following is a specification.

The object of my invention is to provide a simple device for securely looking a nut or nuts; and this object I attain in the following manner, reference being had to the accompanying drawings, in which- Figure 1 is a face view of two adjacent bolts with their nuts and my improved locking device for the latter; Fig. 2, a plan view of the same; Fig. 3, a transverse section on the line 1 2; Fig. 4, a perspective view of the two plates of the locking device, and Fig. 5 aview illustrating a modified form of the device.

A represents part of a plate or other surfacethe fislrplate of a railroad-j oint, for in stance-from which project the ends of two bolts, B, each furnished with a nut, D. Bearing against the face of the plate A, and confined thereto by the nuts, is a washer-plate, F, having slots a for the reception of the bolts, these slots being elongated, so as to permit a slight variation in the distance apart of the bolls. The plate F is bent outward in the center, and to this projecting portion of the plate is hung a lockingplat-e, G, the central portion of the latter being bent so as to lap over and embrace the plate F, as shown in In the upper bent edge of the plate G is formed arecess, b, and in that portion of the plate F which is contained within the recess is an opening, (I, to which is adapted a split ring or open coil, f. The opposite ends of the D, and thus effectually prevent any loosening of the same, and the ring or coil f prevents the accidental release of the plate G from the plate F. Openings gare formed in both wings of the plate G below the edge of the plate F, and the split ring may be applied to these openings instead of to the opening in the plate F; or rings may be applied to both openings.

In the modification shown in Fig. 5 the washer-plate F has a. bent wing, forming a pocket for the locking-plate G, the plateF and its wing being slotted for the reception of the ring f, which is adapted to any opening in the plate G.

The plates may, if desired, be used to look a single nut; but in this case lugs on the plate Asuch, for instance, as shown by dotted lines in Fig. 5or other suitable means should be used to prevent the turning of the plate F.

I claim as my invention- The combination of a bolt and nut, a washerplate, F, confined by the nut and bent outward adjacent thereto, a locking plate, G, carried by the bent portion of the plate, a slotted pocket formed on one of the plates for the reception of the other, and a retainer, f, contained within the slot of the pocket and adapted to an opening in that portion of the plate within the said pocket, as set forth.

In testimony whereof Ihave signed my name to this specification in the presence of two subscribing witnesses.

THOMAS LOVELIDGE.

Witnesses: 7

JOHN M. CLAYTON, HARRY SMITH.

1 plate G bear against the inner faces of the nuts 

